/*********************************************************************
 *                    SEGGER Microcontroller GmbH                     *
 *                        The Embedded Experts                        *
 **********************************************************************
 *                                                                    *
 *            (c) 1995 - 2019 SEGGER Microcontroller GmbH             *
 *                                                                    *
 *       www.segger.com     Support: support@segger.com               *
 *                                                                    *
 **********************************************************************
 *                                                                    *
 *       SEGGER SystemView * Real-time application analysis           *
 *                                                                    *
 **********************************************************************
 *                                                                    *
 * All rights reserved.                                               *
 *                                                                    *
 * SEGGER strongly recommends to not make any changes                 *
 * to or modify the source code of this software in order to stay     *
 * compatible with the SystemView and RTT protocol, and J-Link.       *
 *                                                                    *
 * Redistribution and use in source and binary forms, with or         *
 * without modification, are permitted provided that the following    *
 * condition is met:                                                  *
 *                                                                    *
 * o Redistributions of source code must retain the above copyright   *
 *   notice, this condition and the following disclaimer.             *
 *                                                                    *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND             *
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,        *
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF           *
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE           *
 * DISCLAIMED. IN NO EVENT SHALL SEGGER Microcontroller BE LIABLE FOR *
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR           *
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT  *
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;    *
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF      *
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT          *
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE  *
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH   *
 * DAMAGE.                                                            *
 *                                                                    *
 **********************************************************************
 *                                                                    *
 *       SystemView version: 3.10                                    *
 *                                                                    *
 **********************************************************************
   ---------------------------END-OF-HEADER------------------------------
   File    : SEGGER_RTT_Conf.h
   Purpose : Implementation of SEGGER real-time transfer (RTT) which
          allows real-time communication on targets which support
          debugger memory accesses while the CPU is running.
   Revision: $Rev: 17066 $

 */

#ifndef SEGGER_RTT_CONF_H
#define SEGGER_RTT_CONF_H

#ifdef __IAR_SYSTEMS_ICC__
  #include <intrinsics.h>
#endif

/*********************************************************************
 *
 *       Defines, configurable
 *
 **********************************************************************
 */
#ifndef   SEGGER_RTT_MAX_NUM_UP_BUFFERS
  #define SEGGER_RTT_MAX_NUM_UP_BUFFERS             (3)     // Max. number of up-buffers (T->H) available on this target    (Default: 3)
#endif

#ifndef   SEGGER_RTT_MAX_NUM_DOWN_BUFFERS
  #define SEGGER_RTT_MAX_NUM_DOWN_BUFFERS           (3)     // Max. number of down-buffers (H->T) available on this target  (Default: 3)
#endif

#ifndef   BUFFER_SIZE_UP
  #define BUFFER_SIZE_UP                            (1024)  // Size of the buffer for terminal output of target, up to host (Default: 1k)
#endif

#ifndef   BUFFER_SIZE_DOWN
  #define BUFFER_SIZE_DOWN                          (1024)    // Size of the buffer for terminal input to target from host (Usually keyboard input) (Default: 16)
#endif

#ifndef   SEGGER_RTT_PRINTF_BUFFER_SIZE
  #define SEGGER_RTT_PRINTF_BUFFER_SIZE             (64u)    // Size of buffer for RTT printf to bulk-send chars via RTT     (Default: 64)
#endif

#ifndef   SEGGER_RTT_MODE_DEFAULT
  #define SEGGER_RTT_MODE_DEFAULT                   SEGGER_RTT_MODE_NO_BLOCK_SKIP // Mode for pre-initialized terminal channel (buffer 0)
#endif

/*********************************************************************
 *
 *       RTT memcpy configuration
 *
 *       memcpy() is good for large amounts of data,
 *       but the overhead is big for small amounts, which are usually stored via RTT.
 *       With SEGGER_RTT_MEMCPY_USE_BYTELOOP a simple byte loop can be used instead.
 *
 *       SEGGER_RTT_MEMCPY() can be used to replace standard memcpy() in RTT functions.
 *       This is may be required with memory access restrictions,
 *       such as on Cortex-A devices with MMU.
 */
#ifndef   SEGGER_RTT_MEMCPY_USE_BYTELOOP
  #define SEGGER_RTT_MEMCPY_USE_BYTELOOP              0 // 0: Use memcpy/SEGGER_RTT_MEMCPY, 1: Use a simple byte-loop
#endif
//
// Example definition of SEGGER_RTT_MEMCPY to external memcpy with GCC toolchains and Cortex-A targets
//
//#if ((defined __SES_ARM) || (defined __CROSSWORKS_ARM) || (defined __GNUC__)) && (defined (__ARM_ARCH_7A__))
//  #define SEGGER_RTT_MEMCPY(pDest, pSrc, NumBytes)      SEGGER_memcpy((pDest), (pSrc), (NumBytes))
//#endif

//
// Target is not allowed to perform other RTT operations while string still has not been stored completely.
// Otherwise we would probably end up with a mixed string in the buffer.
// If using  RTT from within interrupts, multiple tasks or multi processors, define the SEGGER_RTT_LOCK() and SEGGER_RTT_UNLOCK() function here.
//
// SEGGER_RTT_MAX_INTERRUPT_PRIORITY can be used in the sample lock routines on Cortex-M3/4.
// Make sure to mask all interrupts which can send RTT data, i.e. generate SystemView events, or cause task switches.
// When high-priority interrupts must not be masked while sending RTT data, SEGGER_RTT_MAX_INTERRUPT_PRIORITY needs to be adjusted accordingly.
// (Higher priority = lower priority number)
// Default value for embOS: 128u
// Default configuration in FreeRTOS: configMAX_SYSCALL_INTERRUPT_PRIORITY: ( configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
// In case of doubt mask all interrupts: 1 << (8 - BASEPRI_PRIO_BITS) i.e. 1 << 5 when 3 bits are implemented in NVIC
// or define SEGGER_RTT_LOCK() to completely disable interrupts.
//
#ifndef   SEGGER_RTT_MAX_INTERRUPT_PRIORITY
  #define SEGGER_RTT_MAX_INTERRUPT_PRIORITY         (0x20)   // Interrupt priority to lock on SEGGER_RTT_LOCK on Cortex-M3/4 (Default: 0x20)
#endif

/*********************************************************************
 *
 *       RTT lock configuration for SEGGER Embedded Studio,
 *       Rowley CrossStudio and GCC
 */
#if (defined(__SES_ARM) || defined(__CROSSWORKS_ARM) || defined(__GNUC__) || defined(__clang__)) && !defined (__CC_ARM)
  #if (defined(__ARM_ARCH_6M__) || defined(__ARM_ARCH_8M_BASE__))
    #define SEGGER_RTT_LOCK()   {             \
    unsigned int LockState;                   \
    __asm volatile ("mrs   %0, primask  \n\t" \
                    "movs  r1, $1       \n\t" \
                    "msr   primask, r1  \n\t" \
                    : "=r" (LockState)        \
                    :                         \
                    : "r1"                    \
                    );

    #define SEGGER_RTT_UNLOCK()   __asm volatile ("msr   primask, %0  \n\t" \
                                                  :                         \
                                                  : "r" (LockState)         \
                                                  :                         \
                                                  );                        \
  }
  #elif (defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_8M_MAIN__))
    #ifndef   SEGGER_RTT_MAX_INTERRUPT_PRIORITY
      #define SEGGER_RTT_MAX_INTERRUPT_PRIORITY   (0x20)
    #endif
    #define SEGGER_RTT_LOCK()   {                             \
    unsigned int LockState;                                   \
    __asm volatile ("mrs   %0, basepri  \n\t"                 \
                    "mov   r1, %1       \n\t"                 \
                    "msr   basepri, r1  \n\t"                 \
                    : "=r" (LockState)                        \
                    : "i" (SEGGER_RTT_MAX_INTERRUPT_PRIORITY) \
                    : "r1"                                    \
                    );

    #define SEGGER_RTT_UNLOCK()   __asm volatile ("msr   basepri, %0  \n\t" \
                                                  :                         \
                                                  : "r" (LockState)         \
                                                  :                         \
                                                  );                        \
  }

  #elif defined(__ARM_ARCH_7A__)
    #define SEGGER_RTT_LOCK() {              \
    unsigned int LockState;                  \
    __asm volatile ("mrs r1, CPSR \n\t"      \
                    "mov %0, r1 \n\t"        \
                    "orr r1, r1, #0xC0 \n\t" \
                    "msr CPSR_c, r1 \n\t"    \
                    : "=r" (LockState)       \
                    :                        \
                    : "r1"                   \
                    );

    #define SEGGER_RTT_UNLOCK() __asm volatile ("mov r0, %0 \n\t"        \
                                                "mrs r1, CPSR \n\t"      \
                                                "bic r1, r1, #0xC0 \n\t" \
                                                "and r0, r0, #0xC0 \n\t" \
                                                "orr r1, r1, r0 \n\t"    \
                                                "msr CPSR_c, r1 \n\t"    \
                                                :                        \
                                                : "r" (LockState)        \
                                                : "r0", "r1"             \
                                                );                       \
  }
  #endif
#endif

/*********************************************************************
 *
 *       RTT lock configuration for IAR EWARM
 */
#ifdef __ICCARM__
  #if (defined (__ARM6M__) && (__CORE__ == __ARM6M__))
    #define SEGGER_RTT_LOCK()   { \
    unsigned int LockState;       \
    LockState = __get_PRIMASK();  \
    __set_PRIMASK(1);

    #define SEGGER_RTT_UNLOCK()   __set_PRIMASK(LockState); \
  }
  #elif ((defined (__ARM7EM__) && (__CORE__ == __ARM7EM__)) || (defined (__ARM7M__) && (__CORE__ == __ARM7M__)))
    #ifndef   SEGGER_RTT_MAX_INTERRUPT_PRIORITY
      #define SEGGER_RTT_MAX_INTERRUPT_PRIORITY   (0x20)
    #endif
    #define SEGGER_RTT_LOCK()   { \
    unsigned int LockState;       \
    LockState = __get_BASEPRI();  \
    __set_BASEPRI(SEGGER_RTT_MAX_INTERRUPT_PRIORITY);

    #define SEGGER_RTT_UNLOCK()   __set_BASEPRI(LockState); \
  }
  #endif
#endif

/*********************************************************************
 *
 *       RTT lock configuration for IAR RX
 */
#ifdef __ICCRX__
  #define SEGGER_RTT_LOCK()   {          \
    unsigned long LockState;             \
    LockState = __get_interrupt_state(); \
    __disable_interrupt();

  #define SEGGER_RTT_UNLOCK()   __set_interrupt_state(LockState); \
  }
#endif

/*********************************************************************
 *
 *       RTT lock configuration for IAR RL78
 */
#ifdef __ICCRL78__
  #define SEGGER_RTT_LOCK()   {          \
    __istate_t LockState;                \
    LockState = __get_interrupt_state(); \
    __disable_interrupt();

  #define SEGGER_RTT_UNLOCK()   __set_interrupt_state(LockState); \
  }
#endif

/*********************************************************************
 *
 *       RTT lock configuration for KEIL ARM
 */
#ifdef __CC_ARM
  #if (defined __TARGET_ARCH_6S_M)
    #define SEGGER_RTT_LOCK()   {                    \
    unsigned int LockState;                          \
    register unsigned char PRIMASK __asm("primask"); \
    LockState = PRIMASK;                             \
    PRIMASK = 1u;                                    \
    __schedule_barrier();

    #define SEGGER_RTT_UNLOCK()   PRIMASK = LockState; \
  __schedule_barrier();                                \
  }
  #elif (defined(__TARGET_ARCH_7_M) || defined(__TARGET_ARCH_7E_M))
    #ifndef   SEGGER_RTT_MAX_INTERRUPT_PRIORITY
      #define SEGGER_RTT_MAX_INTERRUPT_PRIORITY   (0x20)
    #endif
    #define SEGGER_RTT_LOCK()   {                    \
    unsigned int LockState;                          \
    register unsigned char BASEPRI __asm("basepri"); \
    LockState = BASEPRI;                             \
    BASEPRI = SEGGER_RTT_MAX_INTERRUPT_PRIORITY;     \
    __schedule_barrier();

    #define SEGGER_RTT_UNLOCK()   BASEPRI = LockState; \
  __schedule_barrier();                                \
  }
  #endif
#endif

/*********************************************************************
 *
 *       RTT lock configuration for TI ARM
 */
#ifdef __TI_ARM__
  #if defined (__TI_ARM_V6M0__)
    #define SEGGER_RTT_LOCK()   { \
    unsigned int LockState;       \
    LockState = __get_PRIMASK();  \
    __set_PRIMASK(1);

    #define SEGGER_RTT_UNLOCK()   __set_PRIMASK(LockState); \
  }
  #elif (defined (__TI_ARM_V7M3__) || defined (__TI_ARM_V7M4__))
    #ifndef   SEGGER_RTT_MAX_INTERRUPT_PRIORITY
      #define SEGGER_RTT_MAX_INTERRUPT_PRIORITY   (0x20)
    #endif
    #define SEGGER_RTT_LOCK()   { \
    unsigned int LockState;       \
    LockState = _set_interrupt_priority(SEGGER_RTT_MAX_INTERRUPT_PRIORITY);

    #define SEGGER_RTT_UNLOCK()   _set_interrupt_priority(LockState); \
  }
  #endif
#endif

/*********************************************************************
 *
 *       RTT lock configuration for CCRX
 */
#ifdef __RX
  #define SEGGER_RTT_LOCK()   {       \
    unsigned long LockState;          \
    LockState = get_psw() & 0x010000; \
    clrpsw_i();

  #define SEGGER_RTT_UNLOCK()   set_psw(get_psw() | LockState); \
  }
#endif

/*********************************************************************
 *
 *       RTT lock configuration for embOS Simulation on Windows
 *       (Can also be used for generic RTT locking with embOS)
 */
#if defined(WIN32) || defined(SEGGER_RTT_LOCK_EMBOS)

void OS_SIM_EnterCriticalSection(void);
void OS_SIM_LeaveCriticalSection(void);

#define SEGGER_RTT_LOCK()       { \
    OS_SIM_EnterCriticalSection();

#define SEGGER_RTT_UNLOCK()       OS_SIM_LeaveCriticalSection(); \
  }
#endif

/*********************************************************************
 *
 *       RTT lock configuration fallback
 */
#ifndef   SEGGER_RTT_LOCK
  #define SEGGER_RTT_LOCK()                // Lock RTT (nestable)   (i.e. disable interrupts)
#endif

#ifndef   SEGGER_RTT_UNLOCK
  #define SEGGER_RTT_UNLOCK()              // Unlock RTT (nestable) (i.e. enable previous interrupt lock state)
#endif

/*********************************************************************
 *
 *       RTT control block configuration
 */
#define SEGGER_RTT_ALIGNMENT              1024

#endif
/*************************** End of file ****************************/
